Vehicle-pole.



PATENTED MAY 2, 19045.

G. A. LAMBERT.

VEHICLE PLB.

APPLIOATION HLBD AUG. 12, 1904.

@Minne/11d Patented May 2, 1905.

PATENT OEEICE.

GEORGE A. LAMBERT, OF ANDERSON, INDIANA.

VEHICLE-POLE.

SPECIFICATION forming part of Letters Patent N o. 788,654, dated May 2,1905.

Application filed August 12, 1904. Serial No. 220,490.

To @ZZ whom, t nto/ zj concern,.-

Be it known that I, GEORGE A. LAMBERT, a citizen of the United States ofAmerica, and a resident of Anderson, county of Madison,State of Indiana,have invented certain new and useful Improvements in Vehicle-Poles, ofwhich the following is a full and clear specification, reference beinghad to the accompanying drawings, in which- Figure 1 is a perspectiveview of a pole construcied according' to the preferred form; Fig. 2, adetail perspective view of the heel portion detached; Fig. 3, ahorizontal sectional view through a part of the fold adjacent to thedoubletree bearing; Figs. 4, 5, and 6, cross-sections of the pole,showing various forms of sheet-metal structures.

`All-wood vehicle-poles are becoming more and more expensive tomanufacture each season, as suitable hickorywood is becoming scarcer andscarcer.

It is the object of this invention to permit the utilization of smaller,and consequently cheaper, pieces of the wood to be employed. thusreducing the expense of manufacture to a considerable extent.

In my improved pole I make the bent heelpiece a of wood in the usualmanner; but instead of making it integral with the main or straight partof the pole I make it separately therefrom from a comparatively shortpiece of wood and attach it to a sheet-metal pole its forward end beinginserted in the rear hollow end of the pole and fastened therein. Themetal pole is constructed of folded sheet metal. I prefer constructingthe main part of the pole of a single sheet of metal folded onlongitudinal converging lines to forma central web portion c of two ormore thicknesses of metal, as shown in Fig. 4, and oppositely-extendingflanges of two or more thicknesses at the upper and lower edges of theweb portion. These thicknesses of metal are fastened Atogether in anysuitable manner, preferably by rivets passed through the thicknessescomposing the web portion. 'Ihe sides of the channel-iron or I-beam thusformed are bridged over the full length of the fold by shells f,semicircular in cross-section, giving the pole the` desired shape incross-section.

The longitudinal edges of these shells are seamed to the longitudinaledges of the flanges d, thus forming' a very rigid and light pole havinga pleasing and substantial appearance. This metal part of the pole canbe formed Very inexpensively with the proper dies, inasmuch as it is asimple tapering structure without curves.

Instead of constructing the pole in the manner shown in Fig. 4 and abovedescribed I may construct it in a variety of ways. Two of thesemodifications are shown in Figs. 5 and 6. In Fig. 5 the web and flangesare formed of three sheets of metal properly folded and rivetedtogether, the iianges d being of Asingle thicknesses in the web o orthree thicknesses. In Fig. 6 the same structure is shown, except thatthe shells f are expanded at the seam, so that their outer surfacesbecome iiush with the outer faces of the flanges Z/ and form asubstantially continuous surface, giving to the pole a more regular ovalshape in cross-section. i

The wood heel has its forward end g made straight and slightly reducedin diameter, so as to lit tightly in the hollow pole. Its end portion gis slotted vertically for the reception of the central web c, and it isfastened in its socket by any suitable means, preferably by the samebolts /t which fasten the bracerods to the sides of the pole. Ifadditional fastening devices are necessary, the bolts 1.', which fastenthe doubletree bearing-plate j to the pole. may also be utilized forthis purpose. In some constructions the hammerstrap bolts may also bemade to perform the additional function of securing the two parts of thepole together. As shown, the thicknessess composing' the central web aieslightly spread apart for the passage of the bolt c', whereby the bulgesthus formed on the exterior of the central web will be forced into thewood of the stem g. The doubletree-bolt /c may also be used in a likemanner if found desirable.

It will be observed that in the manner set forth in the foregoing astrong and durable pole having as pleasing an appearance as the all-woodpoles may be constructed ata greatlyreduced expense in comparison withthe all- IOO wood poles, as the comparatively short wood pieces requiredfor the heels can be obtained in large quantities at little expense.

It will be understood that I am not confined in my claims to the exactconstruction of heel-piece and metal part shown and described, and Itherefore reserve the right to vary the construction without departingfrom my invention. For instance, it might be desirable to construct thestraight part of the pole partly of wood instead of entirely of metal,this being within the spirit of the invention, as is obvious, and alsothat the rear end of the metal part of the pole may terminate short ofthe king-bolt of the doubletree, so that the lateral bulges shown inFig. 3 (which would interfere with the insertion of the tongue portiong) shall be done away with.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is#

l. In a vehicle-pole, the combination of a straight metallic forwardportion and a bent wooden heel portion attached to the rear end thereof.

Q. In a vehicle-pole, the combination of a bent wood heel portion and astraight metal pole proper hollow at its rear end, the for.- ward end ofthe heel portion being straight and inclosed in said hollow part.

3. In a vehicle-pole, the combination of a hollow sheet-metal pole partproper and a bent heel portion having its forward end straight andinclosed in the rear end of said pole part proper.

4. In a vehicle-pole, the combination of a straight pole part properformed of sheet metal folded and made hollow, said hollow part beingbraced by an internal longitudinal web, a heel portion having itsforward end inserted in said hollow pole member, and means for fasteningthe parts together.

In combination with a curved wooden heel portion having a straightforward eXtension slotted longitudinally` of a metal pole part propermade hollow and provided with a central web, the straight part of theheel l portion being inserted in the rear hollow end of the pole properand fastenedtherein.

6. In a vehicle-pole, the combination of a curved heel member and astraight front portion, said front portion being constructed of acentral web having top and bottom anges and shells seamed to therespective top and bottom fianges, whereby the straight portion of thepole is made hollow, the forward end of the heel portion being insertedin the hol- Alow portion and fastened therein.

7 A vehicle-pole having its main forward part constructed of longitudinaliy-folded sheet metal and its rear or heel portion of wood,substantially as set forth.

8. A vehicle-pole constructed of sheet metal folded on longitudinallines, the folds being brought together to form a multiple-ply centralweb and also top and bottom flanges, and separate sheet-metal side wallsconnecting the flanges on each side.

9. A metallic vehicle pole or shaft consisting of a central longitudinalweb provided with lateral iianges, and metal side walls attached attheir Lipper and lower edges to said flanges.

10. A metallic vehicle-pole consisting of a folded sheet-metal centralweb and separate lower edges to the respective upper and lower edges ofthe web.

ll. A sheet-metal vehicle pole or shaft consisting of a multiple-plycentral web and top and bottom lateral iianges, and single-pl y sidewalls attached to said anges.

12. A sheet-metal pole consisting of a central web part provided withtop and bottom iianges, and side walls or shelves seamed to said flangesalong their longitudinal edges.

In testimony whereof I hereunto affix my signature, in the presence oftwo witnesses, this 9th day of August, 1904.

GEORGE A. LAMBERT.

IVitnesses:

E. W. LONGANECKER, l B. F. LAMBERT.

side walls attached along their upper and

